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CCQM-K68.2019
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CCQM-K68.2019
Information
Metrology area, branch   Amount of Substance, Gases
Description   Nitrous oxide in air at ambient levels
Time of measurement   2019 - 2020
Status   Protocol complete
Reference(s)   CCQM-K68.2019 Registration and progress form
CCQM-K68.2019 Technical Protocol and Forms
Measurand   Mole fraction of nitrous oxide in air expressed in mol/ mol
Nominal values range from 325 nmol/mol to 350 nmol/mol
Transfer device(s)   Gas cylinders
Comparison type   Key comparison
Consultative Committee  CCQM (Consultative Committee for Amount of Substance)
Conducted by   CCQM (Consultative Committee for Amount of Substance)